There are two main categories of transfer function types that are provided by this package
- Subtypes of
TransferFunctionwhich define a general transfer function model/measurement of a microscope apparatus and - Subtypes of
SampledTransferFunctionthat may are created by providing a sampling scheme (most commonly a pixel size) to theTransferFunction. These are used when you are working with specific acquisition with known sampling rates/schemes.
Transfer Functions
You can describe a transfer of a microscope with either the optical transfer function (OTF) the point spread function (PSF) or the generalized pupil function. These descriptions are mostly interchangeable/convertible between each other.
It may the case that a model can be in a closed form expression for some of these and must be approximated for the others, which may be a reason for the choice between them for a specific model.
You can get a transfer function of your optical setup by supplying parameters of the apparatus to a model transfer function that is developed from the underlining physics of a microscope, then you will use a subtype of
TransferFunctions.ModelTransferFunction — TypeUnion type for transfer function that is based on a physical model of an optical system. Contrary to a MeasuredTransferFunction, a ModelTransferFunction must be quantifiable at any point (in either spatial or frequency domain).
Otherwise you can estimate the transfer function, most commonly by the means of an acquisition where the imaged sample is known such as sub-diffraction sized microspheres of known sizes. This approach will lead to a MeasuredTransferFunction
TransferFunctions.MeasuredTransferFunction — TypeAn abstract type for the measurement of the transfer function of an optical system. It can be either a PSF measurement MeasuredPSF or a MeasuredOTF.
Sampled Transfer Functions
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